<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>HTML中的样式</title>
  <style type="text/css">
    h1 {color: red}
    p {color: blue}
  </style>
</head>
<body>

<h1>header 1</h1>
<p>A paragraph.</p>

</body>
</html>